<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="rules" class="login-form" auto-complete="on"
             label-position="left">
      <h3 class="title">选课管理系统</h3>
      <el-form-item prop="number">
        <span class="svg-container">
          <svg-icon icon-class="user"/>
        </span>
        <el-input v-model="loginForm.number" name="number" type="text" auto-complete="on" placeholder="请输入用户名"/>
      </el-form-item>
      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password"/>
        </span>
        <el-input v-model="loginForm.password" name="password" type="password" auto-complete="on" placeholder="请输入密码"/>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" style="width:100%;" @click.native.prevent="login">
          登　录
        </el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
import admin from '../api/admin';

export default {

  name: 'Login',
  data() {
    return {
      rules: {
        number: [{required: true, message: '请输入用户名', trigger: 'blur'},
          {pattern: /\b\d{10}\b/, message: '请输入10位数字的用户名', trigger: 'blur'}
        ],
        password: [{required: true, message: '请输入密码', trigger: 'blur'},
          {min: 5, max: 20, message: '长度在 5到 20个字符', trigger: 'blur'}]
      },
      loginForm: {
        number: '',
        password: ''
      }
    }
  },
  methods: {
    login() {
      //登录
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          //校验通过
          admin.login(this.loginForm.number, this.loginForm.password)
              .then(response => {
                if (response.data.code === "20000") {
                  //登录成功
                  this.$message({
                    type: 'success',
                    message: '登录成功'
                  })
                  localStorage.setItem('user', JSON.stringify(response.data.data))
                  localStorage.setItem('token', JSON.stringify(response.headers.token))
                  this.$router.push('/index')
                } else {
                  this.common.errorReturn(this, response.data.message)
                }
              }).catch(error => {
            alert("服务器异常！")
          })
        }
      })
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss">
$bg: #2d3a4b;
$light_gray: #eee;

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;

      &:-webkit-autofill {
        -webkit-box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: #fff !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}

</style>

<style rel="stylesheet/scss" lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;
.login-container {
  position: fixed;
  height: 100%;
  width: 100%;
  background-color: $bg;

  .login-form {
    position: absolute;
    left: 0;
    right: 0;
    width: 520px;
    max-width: 100%;
    padding: 35px 35px 15px 35px;
    margin: 120px auto;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title {
    font-size: 26px;
    font-weight: 400;
    color: $light_gray;
    margin: 0px auto 40px auto;
    text-align: center;
    font-weight: bold;
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
